You're correct that it's very ambiguous, but you guys have no room to complain about the refs in this game. 28-16 free throws, and a lot of UA's came at the very end when the refs were forced to put them on the line. When your team has to foul the other three times just to get them into the bonus at the end, you know the refs were not your problem.
Just to be clear, this is a problem I've had for a long time. Block/Charge calls didn't dictate this game. The officiating isn't why Az won today, I thought I made it pretty clear they were the better team today. But I pray to the basketball gods that some sort of solution is created here.